+44-116-(3990000...3999999): Leicester, Leicestershire (LEC) Read more about +44-116-(3990000...3999999)
+44-117-(2450000...2459999): Bristol, City of Bristol (BST) Read more about +44-117-(2450000...2459999)
+44-121-(4730000...4739999): Birmingham, Birmingham (BIR) Read more about +44-121-(4730000...4739999)
+44-1604-(382000...382999): Northampton, Northamptonshire (NTH) Read more about +44-1604-(382000...382999)
+44-161-(6890000...6899999): Manchester, Manchester (MAN) Read more about +44-161-(6890000...6899999)
+44-1623-(320000...320999): Mansfield, Nottinghamshire (NTT) Read more about +44-1623-(320000...320999)
